Home / 1,297,827.40-1,946,741.10-766,386.40

Finding the Fourth Proportional to 1,297,827.40, 1,946,741.10 and 766,386.40

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Solution

The fourth proportional to 1,297,827.40, 1,946,741.10 and 766,386.40 is: 1,149,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,827.40 : 1,946,741.10 = 766,386.40 : x
  2. Step 2: Convert to fraction form
    1,297,827.40/1,946,741.10 = 766,386.40/x
  3. Step 3: Cross multiply
    1,297,827.40x = 1,946,741.10 × 766,386.40
  4. Step 4: Simplify right side
    1,297,827.40x = 1,491,955,903,361.04
  5. Step 5: Solve for x
    x = 1,491,955,903,361.04/1,297,827.40
  6. Step 6: Final answer
    x = 1,149,579.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.